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Studies on Photocatalytic CO 2 Reduction over NH 2 ‐Uio‐66(Zr) and Its Derivatives: Towards a Better Understanding of Photocatalysis on Metal–Organic Frameworks
Author(s) -
Sun Dengrong,
Fu Yanghe,
Liu Wenjun,
Ye Lin,
Wang Dengke,
Yang Lin,
Fu Xianzhi,
Li Zhaohui
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201301728
Subject(s) - photocatalysis , triethanolamine , metal organic framework , adsorption , materials science , photoluminescence , photochemistry , metal , electron transfer , visible spectrum , inorganic chemistry , catalysis , chemistry , organic chemistry , analytical chemistry (journal) , metallurgy , optoelectronics
Metal–organic framework (MOF) NH 2 ‐Uio‐66(Zr) exhibits photocatalytic activity for CO 2 reduction in the presence of triethanolamine as sacrificial agent under visible‐light irradiation. Photoinduced electron transfer from the excited 2‐aminoterephthalate (ATA) to Zr oxo clusters in NH 2 ‐Uio‐66(Zr) was for the first time revealed by photoluminescence studies. Generation of Zr III and its involvement in photocatalytic CO 2 reduction was confirmed by ESR analysis. Moreover, NH 2 ‐Uio‐66(Zr) with mixed ATA and 2,5‐diaminoterephthalate (DTA) ligands was prepared and shown to exhibit higher performance for photocatalytic CO 2 reduction due to its enhanced light adsorption and increased adsorption of CO 2 . This study provides a better understanding of photocatalytic CO 2 reduction over MOF‐based photocatalysts and also demonstrates the great potential of using MOFs as highly stable, molecularly tunable, and recyclable photocatalysts in CO 2 reduction.